Rim for rotary inertial energy storage device and method

Patent · Tue Jan 01 04:00:00 EST 1980

OSTI ID:863494

Pollard, Roy E ^[1]

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1. Powell, TN

The present invention is directed to an improved rim or a high-performance rotary inertial energy storage device (flywheel). The improved rim is fabricated from resin impregnated filamentary material which is circumferentially wound in a side-by-side relationship to form a plurality of discretely and sequentially formed concentric layers of filamentary material that are bound together in a resin matrix. The improved rim is provided by prestressing the filamentary material in each successive layer to a prescribed tension loading in accordance with a predetermined schedule during the winding thereof and then curing the resin in each layer prior to forming the next layer for providing a prestress distribution within the rim to effect a self-equilibrating compressive prestress within the windings which counterbalances the transverse or radial tensile stresses generated during rotation of the rim for inhibiting deleterious delamination problems.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
• DOE Contract Number: W-7405-ENG-26
• Assignee: United States of America as represented by Department of Energy (Washington, DC)
• Patent Number(s): US 4187738
• OSTI ID: 863494
• Country of Publication: United States
• Language: English

Related Subjects

/74/
accordance
bound
circumferentially
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compressive
concentric
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counterbalances
curing
delamination
deleterious
device
directed
discretely
distribution
effect
energy
energy storage
fabricated
filamentary
filamentary material
flywheel
form
formed
forming
generated
high-performance
impregnated
improved
improved rim
inertial
inertial energy
inhibiting
layer
layer prior
layers
loading
material
matrix
method
plurality
predetermined
prescribed
prestress
prestressing
prior
provided
providing
radial
relationship
resin
resin matrix
rim
rotary
rotary inertial
rotation
schedule
self-equilibrating
sequentially
side-by-side
side-by-side relation
side-by-side relationship
storage
storage device
stresses
stresses generated
successive
successive layer
tensile
tensile stress
tension
transverse
winding
windings
wound